SHIMANO Shimano Tiagra ST-4725 Left Rear STI and BR-4770 Caliper Kit

Upgrade your cycling setup with the Shimano Tiagra ST-4725 left rear STI kit. This set features slim, ergonomically designed short reach Dual Control Levers paired with a BR-4770 flat mount brake caliper. Engineered for performance, the short shift arc follows natural hand movements, reducing inward shift stroke distance for rapid and precise 10-speed gear changes. The hydraulic brake lever provides powerful and consistent stopping power with minimal effort, even from the hood position. To ensure long-lasting performance, the hydraulic reservoir tank automatically adjusts pad to rotor clearance as pads wear down, maintaining reliable braking throughout your rides.